PLATE 106 
09 
O° Sos 
goose 
g¢o9s 
SGos]g 
Sc 90, 230 
200° 
enoeSo 24 
oe 
so 
o 
i) 
Oo 
o% 
J 
° 
jo 
3 
eg i 
2 
TANGENTIAL SECTION OF QUASSIA Woop (Picrena excelsa [Sw.], Lindl.) 
1. Vessel. 2. Wood parenchyma. 3. Wood fibre. 4. End wall of med- 
ullary ray cell. 5. Medullary ray bundle. 
